摘要
目的为解决暴雨强度公式参数在传统推求方法中所存在的非线性函数拟合的问题.方法应用黄金分割法将参数b和n的值固定,即将非线性函数进行线性化,并在由这两个参数所确定的曲面上,通过计算机的特性来搜索参数A1和C的最优值.结果通过对线性函数的拟合,可以依次得到4个参数的值,近而推得暴雨强度公式.结论经过对多个城市的暴雨强度公式推求与比较,曲面搜索法能够快速、精确地得出计算结果,有效地解决了传统推求方法存在的诸多弊端,计算误差远远小于国家规范要求.
To resolve the problem of non-linear function during the process of traditional calculating rainfall intensity formula. We suggest the method of searching in curved face. It fixes up the parameters b and n, in another words, it let the non-linear function be the linear one. On the face of parameters b and n, search the best answers of parameters A 1 and C. By calculating the linear function, we can get the four parameters orderly and the rainfall intensity formula. By calculating and comparing several cities＇ rainfall intensity formula, the method of searching in curved face could got the answers fleetly and accurately, and it could resolve the disadvantage of traditional calculating methods. The error is far less than the criterion request.
出处
《沈阳建筑大学学报（自然科学版）》
EI
CAS
2006年第6期959-961,共3页
Journal of Shenyang Jianzhu University：Natural Science
基金
辽宁省自然基金项目(20072005)
关键词
暴雨强度公式
曲面搜索法
黄金分割
最小二乘法
rainfall intensity formula
method of searching in curved face
gold segmentation
least twice multiplication
